<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        body {
            margin: 0;
            padding: 0;
        }
        #wrap #header {
            position: relative;
        }
        #logo {
            display: block;
            position: absolute;
            left: 20px;
            top: 20px;
            z-index: 2;
        }
        #main {
            position: absolute;
            width: 100%;
            height: 400px;
            background: #6699ff;
            top: 40px;
            text-align: center;
            z-index: 1;
        }
    </style>
</head>
<body>
    <div id="wrap">
        <div id="header">
            <img id="logo" src="../src/1.png" alt="">
        </div>
        <div id="main">Main</div>
    </div>
</body>
</html>